Porter, Larry C. “A Study of the Origins of the Church of Jesus Christ of Latter-day Saints in the States of New York and Pennsylvania, 1816–1831.” PhD diss., Brigham Young University, 1971. Also available as A Study of the Origins of the Church of Jesus Christ of Latter-day Saints in the States of New York and Pennsylvania, 1816–1831, Dissertations in Latter-day Saint History (Provo, UT: Joseph Fielding Smith Institute for Latter-day Saint History; BYU Studies, 2000).